empirical and molecular formulas

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: We will first calculate the mole fraction of both O2 and N2 and then we will calculate the partial…

Q: The density of a noble gas is 2.71 g/L at 3.00 atm and 0°C. Identify the gas.

A: Given: Density= 2.71g/L=2710 g/m3 Pressure= 3.00atm=3×101325 Pa= 303975 Pa Temperature= 0°C

Q: A 0.0853 mol sample of an unknown gas contained in a 3.00 L flask is found to have a density of 1.37…

A: Given data :  1. No. Of mole = 0.0853 mol  2. Volume = 3.00 L  3. Density = 1.37 g/L  To calculate :…

Q: These distributions were obtained for five different gases at the same temperature. Which of the…

A: Maxwell Boltzmann distribution curve shows the fraction of gas molecules moving with a particular…

Q: An unknown gas contains 88.8% C and 11.2% H. At 0.404 atm and 435 K, the gas has a density of 0.612…

A: First find empirical formula of gas. Assume the mass of sample as 100 g and convert the given…

Q: Intraocular gases are dense, unreactive gases that are used for some vitreoretinal surgeries, such…

A: Given: Density of gas = 5.56 g/LTemperature = 22.5 °CPressure = 0.978 atmPercent of carbon = 17.40…

Q: 1. A 9.70 liter sample of gas measured at 33.0°C and 1.59 atm of pressure has a mass of 14.28 g.…

A: An ideal gas equation shows the relationship between pressure (P), volume (V), and temperature (T)…

Q: If a gaseous mixture is made by combining 3.07 g Ar and 2.59 g Kr in an evacuated 2.50 L container…

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Q: Find density of a gas inside a metal cylinder that contains 0.76 moles of C4H8 gas at 273°C and 2.00…

A: The objective of the question is to find the density of a gas inside a metal cylinder that contains…

Q: 436 CHAP 1 138. You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases pentafluoroethane…

A: Given: Density = 1.79g/mol Pressure = 0.447 atm

Q: If a gaseous mixture is made by combining 3.88 g Ar and 3.67 g Kr in an evacuated 2.50 L. container…

A: Information of question

Q: .63 A mixture containing 0.765 mol He(g), 0.330 mol Ne(g), and 0.110 mol Arg) is confined in a…

A: Given data:

Q: Carbon dioxide gas is collected at 6.0 °C in an evacuated flask with a measured volume of 45.0 L,…

A: We have 6°C as temperature, CO2 gas , 45 L as volume ,0.280 atm as pressure , we have to calculate…

Q: An anesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59% oxygen, by mass. If 2.00 L of…

A: According to the question,  Anesthetic gas contains 64.81% carbon, 13.60% hydrogen and 21.59%…

Q: ired to decrease the volume of the gas sample to 7.44 L, p 0.540 atm, the temperature of the gas…

A: Initial Volume = 9.40 L Initial Temperature =53 °c = 326 K Initial pressure = 0.440 atm Final…

Q: A 7.00 L tank at -5.1 °C is filled with 8.05 g of dinitrogen monoxide gas and 19.7 g of boron…

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Q: If 91.5 mol of an ideal gas occupies 50.5 L at 15.00 ∘C, what is the pressure of the gas?P= ? atm

A: The expression of the ideal gas equation is shown below: PV = nRT P =  pressure of ideal gas V =…

Q: An inflated balloon has a volume of 151 L at sea level (1.00 atm), and is allowed to ascend until…

A: Given: The initial volume (V1) is 151 L The initial pressure (P1) is 1.00 atm The initial…

Q: A 7.45 L container holds a mixture of two gases at 11 °C. The partial pressures of gas A and gas B,…

A: To determine the partial pressure of the third gas by using the ideal gas equation, PV = nRTP =…

Q: An anaesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59 % oxygen by mass, If 2.00 L of…

A: Given: Volume of gas = 2.0 L Temperature = 25 oC Pressure = 0.420 atm mass =2.57 g % of carbon =…

Q: 4.)A 20 mL container of gas has a pressure of 2.5 atm. The container volume is decreased to half the…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: What is the mole fraction of Ne in a gas mixture that contains 0.349 mol Ne and 0.529 mol total?…

A: Since, Mole fraction of the atom or species is the ratio of moles of the atom or species to the…

Q: A 1.25 g sample of an unknown gas at 81 °C and 1.00 atm is stored in a 1.05 L flask. What is the…

A: Given, mass of unknown gas sample m = 1.25 g            temperature T = 81 °C = 81+ 273 K = 354 K…

Q: The density of a noble gas is 10.31 g/L at 3.0 atm and 25.0 ⁰C . Identify the gas

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Q: Calculate the number of moles of Cl2(g) (70.90 g/mol) in a volume of 352 mL at 27.5oC and a pressure…

A: PV = nRT Where, P = pressure in atm, V = volume in L; R = 0.082 L atm mol-1 K-1 and T = temperature…

Q: 1. A 5.85 g sample containing only MgO and CuO is placed in a 5.00 L container. The container is…

A:

Q: The gaseous composition of exhaled breath of air by number an analysis of the number of moles is…

A: We have the following formula, 1. Partial pressure = mole fraction x total pressure 2. mole fraction…

Q: A 3.45 g sample of an unknown gas at 43 °C and 1.10 atm is stored in a 1.85 L flask. What is the…

A: Given datas ; m = 3.45 g T = 43°C =( 43 + 273 ) K = 316 K P = 1.10 atm  V = 1.85 L Density = mass /…

Q: A sample of methane gas at a pressure of 0.947 atm and a temperature of 29.0 °C, occupies a volume…

A: According to Boyle's law, at constant temperature with increase of pressure of ideal gas volume…

Q: 12. The density of a gas is 4.37 grams/Liter at 72 °C and 1.33 atm. What is the molecular weight of…

A: Given:density of the gas = 4.37 g/LTemperature = 72°CPressure = 1.33 atm Required:Molecular weight…

Q: A 7.00 L tank at -7.0 °C is filled with 2.65 g of chlorine pentafluoride gas and 7.83 g of boron…

A: Mass of chlorine pentafluoride = 2.65 g Molar mass of chlorine pentafluoride = 130.45g/mol Mass of…

Q: A glass bulb contains an unknown gas. The gas is either CO2, SO2, C2H6, or CH3F.  Here is some data…

A: We know, P1V1/T1 = P2V2/T2 Where, P1 = initial pressure V1 = initial volume  and T1 = initial…

Q: red in a 2.15L flask. g/

A: Density of the gas = ( mass / volume )  Density = ( 3.35g / 2.15 L )  Density = 1.56 g/L ( Answer )

Q: Chlorine pentafluoride gas is collected at 14.0 °C in an evacuated flask with a measured volume of…

A: P = 0.250 atmV = 5.0 LR = 0.08206 Latm/molKmolar mass of chlorine pentafluoride(ClF5) = 130.44…

Q: A sample of hydrogen gas at a pressure of 1.18 atm and a temperature of 267 °C, occupies a volume of…

A: We know, the Charle's law equation of ideal gas is :=> V1/T1 = V2/T2 where, V1 is initial volume…

Q: A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the…

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Q: evolved during the fermentation of sugar was collected at 263.95 K and 0.913 the molas of gas

A: We will calculate mole of vas

Q: A 3.05 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.95 L flask. What is the…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.